a 60-day intent to sue. >> these beautiful areas that people use for getting out in nature are at great risk of being transformed overnight from the shale oil rush. >> reporter: jacobson says he's not too wared about the fracking. >> they know they'll get sued if they screw up somebody's well water or surface water. >> reporter: but just in case, he has a backup plan. when the auction comes up, he says he might just bid on his own mineral rights and buy them back. allen martin, cbs 5. >>> a follow-up to a story we brought you earlier this week. a caltrans worker has resigned amid allegations that some trucks were using trucks rented by the agency for personal use. >> why are you buying wine on state time, sir? sir, this car right here, this is rented by caltrans. you're using it as your personal car. you take it home every day. it's taxpayer money that goes toward representing this car. >> i'm sorry. i've got no more comments. >> you didn't say anything, sir. it's not "any more" comments. is this good use of taxpayer money? >> the allegations came to light after our cbs affiliate in l.